The HubDoctor® Pro FULL HYBRID CERAMIC Ball Bearing Conversion Kit for Mavic® Freehubs ~ MTB and Road
Get rid of the plastic bushing once and for all! Runs quieter too! Fits seamlessly into your hub, no special spacers required; looks identical from the outside. (The freehub bearings only spin when you are coasting). Don't replace your worn out hub (see last picture) - rebuild it - with HubDoctor® PRO!
The New Patent Pending (61219360) HubDoctor® PRO kit features a dual sealed Hybrid Ceramic ball bearing with a full complement of 56 Si3N4 balls .
Kit contents: inner and outer ceramic ball bearing (Si3N4), 6061-T6 aluminum freehub adapter, 2 outer seals (one extra) 1 bearing spacer, 1 sanding tool and sand paper, detailed instructions to walk you through installation.
What our customers are saying about our HubDoctor® Pro Kit:
The outer bearing is a super smooth running Si3N4 ceramic ABEC 7 sealed ball bearing. The inner bearing spacer is included. A special light contact outer lip seal keeps out dirt and water. An Extra adapter seal is included in the kit.
If you have a worn out hub journal, (see last picture), our new The HubDoctor® Pro kit will save you the cost of replacing the main hub since the new inner bearing sits behind the standard bushing journal on an unworn surface!
Did you know the Mavic® freehub body shell is made of hardened steel and is practically indestructible!? What wears out is the bushing and then you have to replace the entire hub and you’re stuck with an expensive paperweight! The new The HubDoctor® Pro Ball Bearing kit will fix and upgrade your wheel set for less than the cost of a new freehub! And with this new hybrid ball bearing kit you can eliminate replacing the bushings and a source of wear on your hub.
Installation is similar to tapping or pressing in a headset and can be done in 30 minutes. Included with your kit are step-by-step installation instructions that walk you through every step, so it makes it easy to service your own freehub!
For Mavic® road and mtb wheels with plastic inner bushing: Ksyrium, Aksium, Cosmic, Helium, Crossmax SL-Enduro-XL- SLR-ST-29-SX-UB, Deetraks, Deemax, Crossland, Crossland, Crosstrail, Crossride UB, R-SYS, Cosmic Carbon SL, Comet Route, Speedcity with FTS-L and FTS-X hubs (42.50mm or 1.67" long), 2001 to 2009.
Also fits FTS hubs ~ 1998-2000 easy to ID it has a solid hub axle, 5mm allen and 17mm hex nut on the cassette side. FTS hub length is 43.75mm or 1.72"
Please note: A new seal has been designed for 09 Crossmax SLR, ST, 29SS, R-SYS and others using this style design. From the non drive side of the hub you will see a "keyhole" design where the spoke ends fits into. The external lip seal can be removed in these applications. The bottom line is that the kit will fit any of the Mavic freehubs using the plastic bushing and two pawl design.
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We are always happy to answer any questions regarding this product.
Please Note: Photo 5 shows the bearing with the outer seal removed for illustration purposes only. This kit does not contain the freehub body or assembly, but is shown for demonstration purposes only.